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Surveillance Equipment3D PrintersAll CamerasAll GPS DevicesAll Home AssistantsAll PhonesAll Resold at WalmartAll Security CamerasApple HomeKit Compatible DevicesArloCamcorder AccessoriesCamera AccessoriesCell Phone AccessoriesComputer AccessoriesComputer ComponentsComputer MonitorsCorded PhonesDesktop ComputersGarminGeneral Electronic AccessoriesGoogleGoogle HomeGPS TrackersGrades 6-12 ElectronicsHeadsets & AccessoriesHome Audio, Speakers & SoundbarsiPad & TabletsLaptop AccessoriesLaptopsNetworkingPC GamingPortable AudioPrinters & SuppliesRestored AutomotiveRestored HomeRestored PremiumRestored TechRestored ToolsSamsungSanyoSecurity CamerasSecurity Cameras and Security Camera SystemsSharpShop all Headphones & SpeakersShop by BenefitShop by BrandShop by CompatibilityShop by RoomShop Cameras by TypeSmart Energy and LightingSmart Health and FitnessSmart Home Assistants, Controllers & HubsSmart SpeakersSurveillance CamerasTablet AccessoriesTV AccessoriesWorks with AlexaWorks with Google Assistant
Electronic Sensor(411)
Uses item details. Price when purchased online
Room Alert 12S Proactive Environment Monitor – Built-in Temperature Sensor, Supports SSL/TLS, SNMP v3, App Alerts, Made in USA $779.00

Sponsored
$77900
current price $779.00Room Alert 12S Proactive Environment Monitor – Built-in Temperature Sensor, Supports SSL/TLS, SNMP v3, App Alerts, Made in USA
Briidea LD-078 110dB, Switch Household Sensors & Alarms $69.99

Sponsored
$6999
current price $69.99Briidea LD-078 110dB, Switch Household Sensors & Alarms
24 out of 5 Stars. 2 reviews
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YoLink LoRa Smart Door Sensor Starter Kit: - 1/4 Mile Open-Air Range, Door Left-Open Reminders,5 Years Battery Life, SMS/Text, Email & App Alerts, Alexa, IFTTT, Home Assistant From $16.95

Sponsored
From$1695
YoLink LoRa Smart Door Sensor Starter Kit: - 1/4 Mile Open-Air Range, Door Left-Open Reminders,5 Years Battery Life, SMS/Text, Email & App Alerts, Alexa, IFTTT, Home Assistant
304.6 out of 5 Stars. 30 reviews
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TOPGREENER Motion Sensor Switch with Ambient Light Level, Occupancy & Vacancy Modes, No Neutral Required, Ground Wire Required, 150W LED/CFL, Single Pole, TDOS5-JM-W-2PCS, White, 2 Pack From $19.99

Sponsored
From$1999
TOPGREENER Motion Sensor Switch with Ambient Light Level, Occupancy & Vacancy Modes, No Neutral Required, Ground Wire Required, 150W LED/CFL, Single Pole, TDOS5-JM-W-2PCS, White, 2 Pack
43 out of 5 Stars. 4 reviews
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Clearance Sgokeen Wireless Door Sensor Door Entry Chime, Door Open Alert with 600ft Range LED Indicators Receivers + Sensors Wireless Door Alarm,58 Ringtones Black From $13.98

From$1398
Sgokeen Wireless Door Sensor Door Entry Chime, Door Open Alert with 600ft Range LED Indicators Receivers + Sensors Wireless Door Alarm,58 Ringtones Black
904.2 out of 5 Stars. 90 reviews
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2Pairs Smart Door Sensor, WiFi Window Door Sensor Alarm, Contact Sensor for Home Security, Smart Home Automation $15.48

$1548
current price $15.482Pairs Smart Door Sensor, WiFi Window Door Sensor Alarm, Contact Sensor for Home Security, Smart Home Automation
15 out of 5 Stars. 1 reviews
Leak Alert Electronic Water Detector Flood Sensor Alarm From $14.99
From$1499
Leak Alert Electronic Water Detector Flood Sensor Alarm
94.8 out of 5 Stars. 9 reviews
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WIFI Wireless Smart Magnetic Door Window Sensor Detector Alarm For Google Home $11.95

$1195
current price $11.95WIFI Wireless Smart Magnetic Door Window Sensor Detector Alarm For Google Home
33.7 out of 5 Stars. 3 reviews
Homezone Wi-Fi Smart Wireless Window/Door Alarm Sensor, White, 1 Alarm Included From $19.97

2 options
Available in additional 2 optionsFrom$1997
Homezone Wi-Fi Smart Wireless Window/Door Alarm Sensor, White, 1 Alarm Included
314.3 out of 5 Stars. 31 reviews
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New HC-SR501 Small PIR Sensor Module Pyroelectric Infrared Body Motion Sensing-1pc $3.48

$348
current price $3.48New HC-SR501 Small PIR Sensor Module Pyroelectric Infrared Body Motion Sensing-1pc
24.5 out of 5 Stars. 2 reviews
Hosmart HY001-1R+1S, 30ft Rechargeable Household Sensor & Alarm $42.99

Sponsored
$4299
current price $42.99Hosmart HY001-1R+1S, 30ft Rechargeable Household Sensor & Alarm
74.3 out of 5 Stars. 7 reviews
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Best seller 1/2 Mile Long Range Solar Wireless Driveway Alarm System IP65 Weatherproof Outdoor Motion Detectors&Sensor 120dB Siren Sound Light Security Alert System Monitor&Protect Outdoor/Indoor Property(1R2S) From $29.99

Sponsored
From$2999
1/2 Mile Long Range Solar Wireless Driveway Alarm System IP65 Weatherproof Outdoor Motion Detectors&Sensor 120dB Siren Sound Light Security Alert System Monitor&Protect Outdoor/Indoor Property(1R2S)
714.5 out of 5 Stars. 71 reviews
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Seco-Larm E-931-S35RRQ Enforcer Wall Mounted Photoelectric Beam Sensor with 35ft $55.10 Was $69.25

Now$5510
current price Now $55.10, Was $69.25$69.25
Seco-Larm E-931-S35RRQ Enforcer Wall Mounted Photoelectric Beam Sensor with 35ft
25 out of 5 Stars. 2 reviews
Upgraded Smart Water Leak Detector 1s with 1804ft Ultra-Long Range, WiFi Water Sensor with SMS/Email/APP Push and Sound Alarm, 5-Year Battery Life, Suit for Home, Basement, Kitchen, 3 Pack From $36.19
From$3619
Upgraded Smart Water Leak Detector 1s with 1804ft Ultra-Long Range, WiFi Water Sensor with SMS/Email/APP Push and Sound Alarm, 5-Year Battery Life, Suit for Home, Basement, Kitchen, 3 Pack
Vivint dw12 window and door sensor $29.99

$2999
current price $29.99Vivint dw12 window and door sensor
25 out of 5 Stars. 2 reviews
Bitiwend, 16ft Black Motion Household Sensors & Alarms
Bitiwend, 16ft Black Motion Household Sensors & Alarms
724 out of 5 Stars. 72 reviews
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Best seller Entry Sensor (Pack of 4)

Entry Sensor (Pack of 4)
274.9 out of 5 Stars. 27 reviews
Ecobee EB-RSHM2PK-01 Decibel Rating 1 Maximum Range 1 Range White Household Sensors and Alarms Smart Sensor 2 Pieces 2 Pack $87.99 Was $99.00

Now$8799
current price Now $87.99, Was $99.00$99.00
Ecobee EB-RSHM2PK-01 Decibel Rating 1 Maximum Range 1 Range White Household Sensors and Alarms Smart Sensor 2 Pieces 2 Pack
2024.3 out of 5 Stars. 202 reviews
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Honeywell Home RedLINK 3.0 indoor sensors for T10+ (2-Pack) $95.30

$9530
current price $95.30Honeywell Home RedLINK 3.0 indoor sensors for T10+ (2-Pack)
25 out of 5 Stars. 2 reviews
Supplemental Hosmart Alarm Sensor (1 Sensor ) $34.99

$3499
current price $34.99Supplemental Hosmart Alarm Sensor (1 Sensor )
73 out of 5 Stars. 7 reviews
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Driveway Alarm 656ft Wireless Driveway Alarm Outdoor Weather Resistant Motion Sensor-DIY Security Alert-Monitor with 38 Chimes for Indoor Outdoor Use $25.79 Was $39.39

Sponsored
Now$2579
current price Now $25.79, Was $39.39$39.39
Driveway Alarm 656ft Wireless Driveway Alarm Outdoor Weather Resistant Motion Sensor-DIY Security Alert-Monitor with 38 Chimes for Indoor Outdoor Use
873.8 out of 5 Stars. 87 reviews
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Best seller GasKnight 2.0 Natural Gas Detector, Propane Detector, Natural Gas Leak Detection. Plug-In Gas Leak Alarm W LCD Display $34.99

Sponsored
$3499
current price $34.99GasKnight 2.0 Natural Gas Detector, Propane Detector, Natural Gas Leak Detection. Plug-In Gas Leak Alarm W LCD Display
633.9 out of 5 Stars. 63 reviews
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In 25+ people's carts Fixdono Natural Gas Detector, Digital Sound Warning Gas Detector, Natural Gas Leak Security Detection Detector, Alarm Monitor Plug-in Sensor for Home Kitchen Restaurant Hotel School Warehouse $15.99 Was $27.99

Now$1599
current price Now $15.99, Was $27.99$27.99
Fixdono Natural Gas Detector, Digital Sound Warning Gas Detector, Natural Gas Leak Security Detection Detector, Alarm Monitor Plug-in Sensor for Home Kitchen Restaurant Hotel School Warehouse
2364.3 out of 5 Stars. 236 reviews
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Fosmon WaveLink Wireless Motion Sensor Alarm, 500FT Battery Operated Motion Detector Alarm With Plug In Receiver, Weather Resistant Driveway Alarm, Indoor Outdoor Door Chime For Business, Store, Home $21.99

$2199
current price $21.99Fosmon WaveLink Wireless Motion Sensor Alarm, 500FT Battery Operated Motion Detector Alarm With Plug In Receiver, Weather Resistant Driveway Alarm, Indoor Outdoor Door Chime For Business, Store, Home
343.9 out of 5 Stars. 34 reviews
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Fosmon WaveLink 2x Wireless Motion Sensor Alarm Outdoor, Home Security System Alarm, 1x Plug In Receiver, Battery Operated Motion Detector Driveway Alarm, Door Chime For Indoor And Outdoor $29.99

$2999
current price $29.99Fosmon WaveLink 2x Wireless Motion Sensor Alarm Outdoor, Home Security System Alarm, 1x Plug In Receiver, Battery Operated Motion Detector Driveway Alarm, Door Chime For Indoor And Outdoor
134.2 out of 5 Stars. 13 reviews
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MOBI Smart Home 2.4GHz WiFi Water Leak Sensor, Water Sensor, Water Detector Alarm; Water Leak & Flood Detector, Smart Notification App, Expand with Cameras & Smart Home Devices. Battery INCLUDED From $14.95

3 options
Available in additional 3 optionsFrom$1495
MOBI Smart Home 2.4GHz WiFi Water Leak Sensor, Water Sensor, Water Detector Alarm; Water Leak & Flood Detector, Smart Notification App, Expand with Cameras & Smart Home Devices. Battery INCLUDED
94.9 out of 5 Stars. 9 reviews
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Eve Door & Window (Matter) Smart contact sensor for doors & windows, open/closed state, automatic control of accessories, notifications, Thread $43.95

$4395
current price $43.95Eve Door & Window (Matter) Smart contact sensor for doors & windows, open/closed state, automatic control of accessories, notifications, Thread
Water Leak Bug Monitoring Sensor with Alarm 6 Pack - Electronic Flood Detector for Kitchen & Basement- Detects as Little as 1/32" of Liquid - Overflow Alert Beeps Loudly - Gift for New Homeowners

Water Leak Bug Monitoring Sensor with Alarm 6 Pack - Electronic Flood Detector for Kitchen & Basement- Detects as Little as 1/32" of Liquid - Overflow Alert Beeps Loudly - Gift for New Homeowners
Electronic Vibration Sensor SW-420 Shake Switch 12V 10mA Straight Pin 20 Pcs $9.09

$909
current price $9.09Electronic Vibration Sensor SW-420 Shake Switch 12V 10mA Straight Pin 20 Pcs
DICEEVIL Driveway Alarm, 656ft Wireless Driveway Alarm Outdoor Weather Resistant Motion Sensor- Security Alert-Monitor with 38 Chimes for Indoor Outdoor Use $19.99

$1999
current price $19.99DICEEVIL Driveway Alarm, 656ft Wireless Driveway Alarm Outdoor Weather Resistant Motion Sensor- Security Alert-Monitor with 38 Chimes for Indoor Outdoor Use
24 out of 5 Stars. 2 reviews
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Akicon Humidity Sensor Switch for Bathroom Exhaust Fan, Ventilation fan, LED Light, Night Light, Air Moisture Control, Timer Switch for Bathroom Fan, UL Listed, White $43.99
Sponsored
$4399
current price $43.99Akicon Humidity Sensor Switch for Bathroom Exhaust Fan, Ventilation fan, LED Light, Night Light, Air Moisture Control, Timer Switch for Bathroom Fan, UL Listed, White
15 out of 5 Stars. 1 reviews
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Best seller Driveway Alarm Wireless, Outdoor Motion Sensor Alarm with Motion Detector, Weatherproof Solar Driveway Alarm, 700 ft Range, 1 Receiver and 1 Sensor, Home Security System, Black $27.99

Sponsored
$2799
current price $27.99Driveway Alarm Wireless, Outdoor Motion Sensor Alarm with Motion Detector, Weatherproof Solar Driveway Alarm, 700 ft Range, 1 Receiver and 1 Sensor, Home Security System, Black
794.2 out of 5 Stars. 79 reviews
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2Pairs Smart Door Sensor, WiFi Window Door Sensor Alarm, Contact Sensor for Home Security, Smart Home Automation $14.89

$1489
current price $14.892Pairs Smart Door Sensor, WiFi Window Door Sensor Alarm, Contact Sensor for Home Security, Smart Home Automation
XIHAMA 25-80dB, 100 meters Motion Household Sensor & Alarm 5 Pieces $32.92

$3292
current price $32.92XIHAMA 25-80dB, 100 meters Motion Household Sensor & Alarm 5 Pieces
154.4 out of 5 Stars. 15 reviews
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BX700-DDT-T Autonics Photo Electric Sensor 12-24VDC $96.04

$9604
current price $96.04BX700-DDT-T Autonics Photo Electric Sensor 12-24VDC
Eve Door & Window (Matter) 3 pack Smart contact sensor for doors & windows, open/closed state, automatic control of accessories, notifications, Thread $109.95

$10995
current price $109.95Eve Door & Window (Matter) 3 pack Smart contact sensor for doors & windows, open/closed state, automatic control of accessories, notifications, Thread
HTZSAFE, 1/2 Mile Outdoor Motion Sensor & Detector Household Sensors & Alarms $99.99

$9999
current price $99.99HTZSAFE, 1/2 Mile Outdoor Motion Sensor & Detector Household Sensors & Alarms
43.3 out of 5 Stars. 4 reviews
Best seller Driveway Alarm Wireless, Outdoor Motion Sensor Alarm with Motion Detector, Weatherproof Solar Driveway Alarm, 700 ft Range, 1 Receiver and 1 Sensor, Home Security System, Black $27.99

$2799
current price $27.99Driveway Alarm Wireless, Outdoor Motion Sensor Alarm with Motion Detector, Weatherproof Solar Driveway Alarm, 700 ft Range, 1 Receiver and 1 Sensor, Home Security System, Black
794.2 out of 5 Stars. 79 reviews
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Best seller Driveway Alarm Wireless Outside, Motion Sensor Alarm 1000 FT Range Extra Loud Chimes Home Security Alarm System with 1 Receiver 1 Weatherproof Infrared Sensors Protect Indoor/Outdoor Property $18.99 Was $28.99

Now$1899
current price Now $18.99, Was $28.99$28.99
Driveway Alarm Wireless Outside, Motion Sensor Alarm 1000 FT Range Extra Loud Chimes Home Security Alarm System with 1 Receiver 1 Weatherproof Infrared Sensors Protect Indoor/Outdoor Property
583.9 out of 5 Stars. 58 reviews
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DSC PG9914 Wireless PowerG Digital Pet-Immune PIR Motion Detector Sensors $81.69 Was $98.95

Now$8169
current price Now $81.69, Was $98.95$98.95
DSC PG9914 Wireless PowerG Digital Pet-Immune PIR Motion Detector Sensors
axGear Smart WiFi Door Sensor Window Contacts Open and Close Detector $10.99

$1099
current price $10.99axGear Smart WiFi Door Sensor Window Contacts Open and Close Detector
23 out of 5 Stars. 2 reviews
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Skylink Wireless Deluxe Long Range Indoor Outdoor Motion Sensor and Window Door Sensor Alarm System $59.25

$5925
current price $59.25Skylink Wireless Deluxe Long Range Indoor Outdoor Motion Sensor and Window Door Sensor Alarm System
11 out of 5 Stars. 1 reviews
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WiFi Smart Motion Sensor Alarm Indoor Infrared PIR Detector Siren Tuya Smart APP Control Wireless Trigger Player Home Security

WiFi Smart Motion Sensor Alarm Indoor Infrared PIR Detector Siren Tuya Smart APP Control Wireless Trigger Player Home Security
24.5 out of 5 Stars. 2 reviews
MACROS BT274-coffee-1R1S 1/2 Mile Range Solar Wireless Motion Sensor Household Sensor and Alarm
MACROS BT274-coffee-1R1S 1/2 Mile Range Solar Wireless Motion Sensor Household Sensor and Alarm
104.8 out of 5 Stars. 10 reviews
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Portable Motion Sensor Alarm And Entrance Alert Chime With 90dB Siren Sound $14.50

$1450
current price $14.50Portable Motion Sensor Alarm And Entrance Alert Chime With 90dB Siren Sound
164.1 out of 5 Stars. 16 reviews
DSC WS4945 Wireless Door/Window Contact Sensor $57.05

$5705
current price $57.05DSC WS4945 Wireless Door/Window Contact Sensor
25 out of 5 Stars. 2 reviews
Topvico Water Alarms for Basements, Heater Leak Detector, Sump Pump Overflow Moisture Flood Sensor, 120dB Work Alone Battery Operated 3 packs From $8.95

5 options
Available in additional 5 optionsFrom$895
Topvico Water Alarms for Basements, Heater Leak Detector, Sump Pump Overflow Moisture Flood Sensor, 120dB Work Alone Battery Operated 3 packs
354.5 out of 5 Stars. 35 reviews
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Zigbee Door Sensor Window Sensor Tuya Door Opener Detector Wireless Smart Door Sensor Alarm for Home Security&Automation,1 x Smart Door Sensor,White $10.19

$1019
current price $10.19Zigbee Door Sensor Window Sensor Tuya Door Opener Detector Wireless Smart Door Sensor Alarm for Home Security&Automation,1 x Smart Door Sensor,White
Driveway Alarm Wireless Outside Motion Sensor Alarm with Receiver Weatherproof Infrared Sensor, Indoor Home Security Business Alert System Detector(1Pcs)

Driveway Alarm Wireless Outside Motion Sensor Alarm with Receiver Weatherproof Infrared Sensor, Indoor Home Security Business Alert System Detector(1Pcs)
Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (4 Pcs) Home Alarm(Batteries not included) From $10.49

3 options
Available in additional 3 optionsFrom$1049
Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (4 Pcs) Home Alarm(Batteries not included)
1423.9 out of 5 Stars. 142 reviews
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